Questions Asked on
March 29, 2010

  1. math

    Solve the problem. Use 3.14 for ð. Round to the nearest tenth, if necessary. A cylindrical container has a diameter of 10 in. and a volume of 549.5 in3. What is the height of the container?

    asked by Cindy
  2. TSU Chemistry

    Which of the following reactions needs to be reversed to solve for the Heat of Neutralization between Hydrochloric Acid and Ammonia

    asked by Pam
  3. Finance

    The Monley Corporation of New Jersey has gross profits of $980,000 and $260,000 in depreciation expense. The Majors Corporation of Nebraska also has $980,000 in gross profit, with $60,000 in depreciation expense. Selling and administrative expense is

    asked by Mesha
  4. Math for Elementary Teachers II

    How many 4-digit license plates can be made by using the digits 0, 2, 4, 6, and 8 if repetitions are allowed? if repetitions are not allowed?

    asked by Michael
  5. math

    y=5x+5 2y+10x=-78 Please help i don't know how to solve this System of Equations Thanks

    asked by rachel
  6. MATH-157

    Consider the experiment of rolling a single die. Find the probability of the event described. What is the P(odd and prime)? A) 1/6 B) 1/2 C) 2/3 D) 1/3

    asked by Tyga
  7. Finance

    The Monley Corporation of New Jersey has gross profits of $980,000 and $260,000 in depreciation expense. The Majors Corporation of Nebraska also has $980,000 in gross profit, with $60,000 in depreciation expense. Selling and administrative expense is

    asked by Mesha
  8. MATH 157

    Consider a bowl containing 36 different slips of paper. Ten of the slips of paper each contain one of the digits from the set 0 through 9 and 26 slips each contain one of the 26 capital letters of the alphabet. If one slip is drawn at random, what is

    asked by Tyga
  9. Principle of Accounting

    t is stand accounting procedures, or GAAP, to make an adjusting entry to remove the current year�s principle from the long-term liabilities. This entry reduces the long-term liabilities and increases the current liabilities. You are the bookkeeper for

    asked by Tammy
  10. ppo

    Discuss the general environmental challenges of international management that a manager faces in the global environment that she would not face in a domestic

    asked by Anonymous
  11. Calculus

    Given f(x)=sin(x)-2cos(x) on the interval [0,2pi]. Determine where the function is concave up and concave down.

    asked by Sarah
  12. biology

    Replication of the E. coli chromosome takes 40 to 45 minutes, but the organism has a generation time of 26 minutes. How does the cell have time to make complete chromosomes for each daughter cell? For each granddaughter cell? my reponse was that the cells

    asked by anon
  13. Physics *(URGENT)

    Use a sentence to describe how the spacing of the dots for the accelerated motion is different from the spacing of the dots you would expect for uniform motion. In accelerated motion the dots are spaced further apart as the time increases. Would my answer

    asked by John
  14. chemistry

    identify the atoms that are being oxidized and reduced.. 2FeCl3 + 2KI --> 2FeCl2 + 2KCl + I2

    asked by steven
  15. Physics 2 (URGENT)

    Which of the following has an acceleration in the same direction as the object's motion? 1. Vi=3.5m/s [east]; Vf=7.5m/s [east] 2. Vi=45km/h [north]; Vf=60km/h [north] 3. Vi=15m/s [right]; Vf=10m/s [left] Textbook Ans: 1 and 2 Can someone explain why? Cause

    asked by John
  16. English

    1. This is the book whose cover is red. This is the book. + Its cover is red. 2. This is the book of which the cover is red. This is the book. + The cover of it is red. => This is the book the cover of which is red. => This is the book whose cover is red.

    asked by rfvv
  17. classroom instruction

    • How do classroom management issues differ, depending on the subject matter?

    asked by scooby
  18. Astronomy

    Suppose you received a message from aliens living on a planet orbiting a star identical to our Sun. They say they live 4 times farther from tier star than Earth is from the sun. What is the length of their year compare to ours?

    asked by Anonymous
  19. Astronomy

    The great galaxy in Andromeda has an angular diameter along its long axis of about 5 degree. Its distance is about 2.2 million light years. What is its linear diameter?

    asked by BB
  20. chemistry

    Which of the following ionic compounds is INSOLUBLE in water? a. CuSO4 b. AgBr c. KI d. (NH4)2CO3 e. LiNO3

    asked by kolin
  21. chemistry

    What volume of WATER MUST BE ADDED to 10.0 mL of 6.0 M NaOH to make a solution that is 0.30 M in NaOH? Assume that the volumes are additive. a. 10 mL b. 190 mL c. 200 mL d. 210 mL e. 500 mL

    asked by lawrence
  22. math

    if f(x)=1-3x/2+x find an exact value of f(-1/2)

    asked by Luke
  23. make

    make f the subject of the formula: D=square root p/f-p

    asked by Luke
  24. Com 220

    What does it mean when asked to paraphrase a article? Do I use my own words or the authors words?

    asked by Suzanne
  25. physics

    a 125Newton box is pulled east along a horizontal surface with a force of 60Newton acting at an angle of 42degrees. if the force of friction on the box is 15 newton, what is the acceleration?

    asked by jake
  26. college physics

    Suppose a 69 kg person stands at the edge of a 7.8 m diameter merry-go-round turntable that is mounted on frictionless bearings and has a moment of inertia of 1600 kg*m^2. The turntable is at rest initially, but when the person begins running at a speed of

    asked by Anonymous
  27. pre calculus

    The conic section whose equation is x 2 - 3y 2 - 8x + 12y + 16 = 0, is in Position is I. Is this true or false?

    asked by aaa
  28. algebra

    I need help finding the center and latus rectum of the equation: 3y^2 - 2y + x + 1 = 0

    asked by hopple
  29. algebra

    How do i find the transformed equation of the hyperbola xy = 4 when rotated 45 degrees? I don't understand at all. my choices are: A - (x')²(y')² = 4 B - (x')² - (y')² = 4 C - (x')² - (y')² = 8

    asked by hopple
  30. pre calculus

    The conic section whose equation is x^2 - 3y^2 - 8x + 12y + 16 = 0, is in Position is I. Is this statement true or false

    asked by aaa
  31. algebra

    What is major axis for the equation 9x^2 + 16y^2 - 36x + 96y + 36 = 0

    asked by hopple
  32. Chemistry

    The volume of acetic acid in a sample of 500mL of vinegar is determined to be 1mL. What is the v/v percentage of the vinegar?

    asked by Stacey
  33. art

    i've got to make a power station using a shoebox and any thing else i can think of any ideas??

    asked by hazel
  34. math

    what are the factors of 32

    asked by lisa
  35. physics

    A clean glass capillary tube is held vertically in water raised to a height of 7cm. The tube is down depressed and only 5cm of its length is above water. What will be the angle of contact?

    asked by Edwin
  36. statistics

    Scores on a test have a mean of 66 and Q3 of 81. The scores have a distribution that is approximately normal. Find the standard deviation. Round your answer to the nearest tenth.

    asked by Abby
  37. 12th grade

    There are 300 students in 12th grade. What is the total population of the school?

    asked by Anonymous
  38. science

    What is e=mc2

    asked by Anonymous
  39. Chemistry

    What are the common molecular shapes around the carbons?

    asked by Kathleen
  40. Economics

    Suppose you own a home remodeling company. You are currently earning short-run profits. The home remodeling industry is an increasing-cost industry. In the long run, what do you expect will happen to a. Your firm's costs of production? (will production

    asked by John
  41. Chemistry

    8. For the reaction H2(g)+I2(g)„\2HI(g); [H2] = 0.95 M; [I2] = 0.78 M; [HI] = 0.27 M. Calculate the equilibrium constant K and describe the direction (forward or reverse) of the reaction. Will adding a catalyst to the reaction alter the direction of the

    asked by Kathleen
  42. social studies

    Can someone give me a website to get references on creating a timeline tracking the following major themes/paradigm shifts in Ameeican history from World War I through the end of World War II 1945

    asked by Dellaine
  43. Chemistry

    4. Write the balanced equation for CH4+Cl2„_CH2Cl2+HCl 4a. For the reaction in problem 4, ƒ´H = -118.3 kcal/mol. Identify whether this is an exothermic or endothermic reaction. Calculate the ƒ´H when 6.00 g of Cl2 are used in the reaction

    asked by Kathleen
  44. Human Resource Management

    Consider these methods for performance appraisal: trait methods, behavioral methods, and results methods. Then select an industry or organization that has many occupational positions within it (the retail industry, the transportation industry, a marketing

    asked by Lisa
  45. Economics

    When McDonald's Corp. reduced the price of its Big Mac by 75 percent if customers also purchased french fries and a soft drink, The Wall Street Journal reported that the company was hoping the novel promotion would revive its U. S. sales growth. It didn't.

    asked by John
  46. math

    Hello! I came across the following two problems that appear easy but I was not able to construct the needed equations. (1) The profit (in thousand of dollars) on x thousand units of a specialty item is p = 0.6x - 14.5. The cost c of manufactoring x

    asked by guitarman
  47. math

    According to the center of Science in the Public Interest, the maximum healthy weight for a person who is 5 feet, 5 inches is 150 pounds and the maximum healthy weight for a person 6 feet, 3 inches tall is 200 pounds. The relationship between weight and

    asked by guitarman
  48. college

    A line of dancing on Sesame Sreeet across the screen like a chorus line. do the commas go between on,Sesame

    asked by heather
  49. biology

    one difference3 between a gastrovascular cavity and a one-way digestive system is the presence or absence of

    asked by izzy
  50. Teaching

    Hello! Have a question. I am writing a lesson plan and am confused now. When learners are doing for example a fill in exercise (e.g. they have to put the verbs in brackets in the Past Simple) what kind of a teaching method or technique am i using?It is

    asked by refy
  51. Microbiology

    Why are fermentation tubes evaluated at 24 and 48 hrs? If an organism oxidatively metabolizes glucose, what will occur in the fermentation tubes?

    asked by Kathleen
  52. Algebra 2

    Solve the following systems of equations graphically. Please state your answer as an ordered pair (x,y). (Do not put spaces between any part of your answer, or it will not be graded as correct.)

    asked by Quita
  53. college algebra

    state the domain of f(x) = (x+3)/(x-1)

    asked by carmen
  54. physics

    a metal cylinder is heated and then cools. if the radius always equals the height, find the expression for the instantaneous rate of change of volum V with respect to the radius r.

    asked by luis
  55. algebra

    please help! The width of a rectangle is 4ft less than the length. The area is 12 ft sq. Find the length and the width.

    asked by Jerry
  56. Science

    When determining the formula for a compound, it is important to know the valence numbers of each element. Suppose that "element A" has a valence number of 3 and "element B" has a valence of 2. If the two elements combine, then when writing the formula for

    asked by Shanda
  57. college

    y - y-3 3 ___________ 4 + 2 9 3

    asked by julie
  58. English

    Thank you very much for your corrections! Can you please tell me if the following sentences are possible or mean the same? I really hope you can check them, too. 1) The dragon was enraged but Beowulf did not flinch. He raised his sword and gave a mighty

    asked by Franco
  59. business

    Is it necessary for a finance Manager (CFO) to understand Accounting if the firm has a professional accountant (CPA)on staff? Why or Why not?

    asked by velinda
  60. Chemistry

    Is C2Cl2 a bent molecule

    asked by Marijane
  61. Chemistry Eq. Question

    3H2(g) + N2(g) reverse reaction arrow 2NH3(g) What factors would affect the equilibrium constant for the reaction above? (Select all that apply.) increasing the H2 concentration decreasing the NH3 concentration increasing the temperature decreasing the

    asked by Jeena
  62. chemistry

    Calculate the total amount (in moles) of Ca and Mg present in a sample of water that required 12.86 ml of 0.0005M EDTA solution to completely complex them.

    asked by Ana
  63. College Chem

    4. Write the balanced equation for CH4+Cl2„_CH2Cl2+HCl6. For the reaction in problem 4, Heat of Reaction = -118.3 kcal/mol. Identify whether this is an exothermic or endothermic reaction. Calculate the Heat of Reaction when 6.00 g of Cl2 are used in the

    asked by Kathleen
  64. College Chem

    4. Write the balanced equation for CH4+Cl2„_CH2Cl2+HCl What are 3 ways you can speed the reaction in this equation?

    asked by Kathleen
  65. Chem

    Which solvent, water or hexane (C6H14), would you choose to dissolve each of the following? 1. NaCl 2. HF 3. Octane 4. (NH4)2SO4

    asked by Stephany
  66. biology

    in response to shortened day length and cool temperatures, many trees begin a period of senescence when the breakdown of chlorophyll exceeds chlorophyll production. the leaves of these trees change to yellow and orange. using your knowledge of

    asked by ramla
  67. Edu 310

    When is it appropriate to learn individually and when is it appropriate to learn as a member of a group?

    asked by alicia
  68. social studies

    what three political groups came out of the french revolution

    asked by lisa
  69. Chemistry

    Why do chelating ligands form more stable complexes than ligands that do not chelate?

    asked by Anonymous
  70. religion

    What does disfellowship mean? for jehovah witnesses can u help me plz with soem good sites to explain it. thank you

    asked by scooby
  71. math

    if you put me into 7 equeal groups with 3 in each group and 5 are left over,what number am i?

    asked by Hadiya
  72. Chem Equilbirum

    SO2(g) + NO2(g) reverse reaction arrow SO3(g) + NO (g) At a given temperature, analysis of an equilibrium mixture found [SO2] = 4.00 M, [NO2] = 0.500 M, [SO3] = 3.00 M, and [NO] = 2.00 M. ---How many moles/liter of NO2 would have to be added to the

    asked by Jeena
  73. calculus

    Find an equation of the line tangent to 2x^2-x-ln(x-4)-y^2=9 at (5,6)

    asked by Lori
  74. science

    what amount of ammonium chloride do I need to make a 100 micromolar solution?

    asked by Michael
  75. integrated algebra

    solve for x x+1/x=-7/x-12

    asked by Jerry
  76. accounting

    Deane Company issues $5 million, 10-year, 9% bonds at 96, with interest payable on July 1 and January 1.The straight-line method is used to amortize bond discount. Prepare the journal entry to record interest expense and bond discount amortization on July

    asked by Jenny
  77. Precalculus

    a farmer has available 1032 feet of fencing and wishes to enclose a rectangular area. If x represents the width of the rectangle for what value of x is the area the largest A) 256.5 feet b) 258 feet c) 256 feet d) 257 feet

    asked by Arielt
  78. Precalculus

    find (f composed of g)(x)=given f(x)=2x squared +3 g(x)=4x cubed +1

    asked by Arielt
  79. Precalculus

    state the domain and range of the following f(x)= x squared +4, x more than or equal to zero f(x)= 4/x+2

    asked by Arielt
  80. Precalculus

    f(x)=x-5 g(x)=1/x-1 find the range of the following f(g(x)) g(f(x))

    asked by Arielt
  81. Chemisty

    calculate pH of 50.0 mL of a .100 M solution of the weak monoprotic acid HX

    asked by Emily
  82. Spanish

    how do you make this sentence singular? Mis hermanos quieren jugar al futbol.

    asked by Ummm
  83. math

    The following data set gives the difference between the winning and losing scores in 50 randomly observed highschool basketball games: 2, 12, 1, 2, 12, 5, 14, 2, 45, 9, 1, 8, 18, 28, 9, 4, 30, 16,4, 12, 8, 13, 20, 9, 17, 13, 49, 17, 13, 4, 14, 2, 12, 29,

    asked by KiKi
  84. Math

    Isn't 1/7th less than 1/6th?

    asked by GGIFT
  85. finance

    1. The Monley Corporation of New Jersey has gross profits of $980,000 and $260,000 in depreciation expense. The Majors Corporation of Nebraska also has $980,000 in gross profit, with $60,000 in depreciation expense. Selling and administrative expense is

    asked by victor
  86. math

    using n as the variable, how do you find 3 consecutive integers in which 3 times the sum of the first two is 16 more than the third?

    asked by missy
  87. math

    Grade Frequency A 2 B 8 C 11 D 2 F 1 how would this graph change if there were twice as many grades?

    asked by KiKi
  88. Pre-Cal

    Find f X g , g X f , and f X f f(x) = 3sqrt x-1 g(x) = x^3 + 1 For f(x) the 3 is little above the sqrt sign. My answers were: f(g(x)) = 3sqrt x^3 + 1 -1 g(f(x)) = 3sqrt (x-1)^3 -1 f(f) = 3sqrt x-1-1 My teacher said these were wrong. Please help. I do not

    asked by Hannah
  89. Chemistry NMR

    3h 2h 1h 4 3 2 1 0 ppm C2H6O I tried to duplicate the spectrum for this compound. I'm guessing its ethanol but I don't know how to answer the following questions for each peak 1,2,3....1.Chemical shift(ppm) 2.Multiplicity(splitting) 3.Integration(# of h's)

    asked by Andy
  90. Science

    You throw a ball upward and then it falls back down. How does the velocity of the ball change as it rises and falls?

    asked by Jenna
  91. biology

    in japan, native honeybees have evolved an effective defense strategy against giant Japanese hornets. imported European honeybees, however, are unable to defend themselves. explain this in terms of coevolution?

    asked by Lala
  92. biology

    in a relationship that is an example of commensalism, would the species that is neither helped nor harmed evolve in response to the other species?

    asked by Lala
  93. calculus

    (6+2y)/(3*sqrt(9-y^2)) = Ae^(kt) How do you show the steps to figure what y equals?

    asked by David
  94. Math

    Determine two coterminal angles (one positive and one negative) for the given angle. Give your answer in radians. A) 8pi/9 B) 8pi/45 For 8pi/9 I added 18pi/9 which equals 26pi/9 - 18pi/9 = -10pi/9. I do not know how to find the positive one for 8pi/9 and I

    asked by Abbey
  95. biology

    a scientist finds no evidence that species in a community are competing and concludes that competition never played a role in the development of this community. is this conclusion valid?

    asked by Lala
  96. chemistry

    calculate the concentration of each solutions: 3 moles of solute dissolved in 2 liter of solution 6 moles of solute dissolved on 9 liters of solution 4 moles of solute dissolved in 3 liters of solution

    asked by jess
  97. Math

    Suppose that the chance of reaching into a bag of coins and selecting a quarter is 40%. Write this probability as a decimal and as a fraction.

    asked by Justaskin
  98. chemistry

    what is the formula for magnesium with Nitrogen

    asked by Tammy
  99. Chemistry

    How much heat is given off when 24.0 g of methane is burned in air? The equation for the reaction is: CH4 + 2O2 => CO2 + 2H2O + 890 kJ What equation or formula should I use to solve this? Thanks!

    asked by Lily
  100. physics

    A 1.00-kg duck is flying overhead at 1.50 m/s when a hunter fires straight up. The 0.010 0-kg bullet is moving 100 m/s when it hits the duck and stays lodged in the duck's body. What is the speed of the duck and bullet immediately after the hit?

    asked by jillian
  101. Geography

    [][]Note to teacher: Note from teacher: Imagine you are an elected official with the responsibility of drafting legislation designed to protect our environment. What items will you include in your bill? Who will be responsible for the bill's

    asked by math 202
  102. Chemistry

    Which of these is true about the following reaction? NaOH + HCl ¡æ NaCl + H2O A. NaOH is the proton acceptor. B. HCl acts as the Br©ªnsted-Lowry acid. C. NaOH and HCl are the products. D. This is an example of a neutralization reaction. E. The products

    asked by Lily
  103. English

    Describe the picture using the following expressions. (There are some English expressions in a colored box.) 1. How much juice is there in the glass? There is a little juice. 2. How much water is there in the cup? There is a little water in the cup. 3. How

    asked by rfvv
  104. math

    circle the digit worth 6/100 in this number 6.666

    asked by nguyen
  105. Chemistry

    SO2(g) + NO2(g) reverse reaction arrow SO3(g) + NO (g) At a given temperature, analysis of an equilibrium mixture found [SO2] = 4.00 M, [NO2] = 0.500 M, [SO3] = 3.00 M, and [NO] = 2.00 M. ---How many moles/liter of NO2 would have to be added to the

    asked by Jeena
  106. English

    1. There is a box of apples. 2. There is a bunch of bananas. 3. There are two baskets of oranges. 4. There are a few cartons of milk on the table. 5. There is a bunch of grapes in the box. 6. There are two bunches of grapes in the paper box. (Are the

    asked by rfvv
  107. 5th grade

    looking for a number sentence the same when you read it from either direction

    asked by Anonymous
  108. religion

    what are church services like for jehovah witness i had a site but i lost it can u help me plz ty

    asked by scooby
  109. Chemistry

    Which of the following reactions needs to be reversed to solve for the Heat of Neutralization between Hydrochloric Acid and Ammonia? Acetic Acid + Sodium Hydroxide Hydrochloric Acid + Sodium Hydroxide Acetic Acid + Ammonia

    asked by Cam
  110. Math

    Insert Parentheses when necessary 7-2*5/2+6=-10

    asked by Lisa
  111. 9th grade chemistry

    At what temperature will 50. grams of NH4Cl just saturate 100. grams of water? (the 4 is the number of elements)

    asked by chemistry challenged
  112. college algebra

    When a ball is thrown up into the air, it makes the shape of a parabola. The equation S= -5t^2 + v*t + k gives the height of the ball at any time, t in seconds, where “v” is the initial velocity (speed) in ft/sec and “k” is the initial height in

    asked by renee
  113. Chemistry

    What is the pH of a 0.0054 molar solution of Oxalic Acid. K1= 6.5E-2, K2= 6.1E-5? Here's what I have so far for K1: 6.5E-2 = (x)(x)/ (x-0.0054) x= 0.0059 pH = -log(0.0059) = 2.23 K2 is pretty much the same, but I have to work it out. 6.1E-5 = (x)(x +

    asked by James
  114. calculas

    f(x)=ln[(1+e^2x)/(e^2x-4) find the derivative

    asked by Lori
  115. chemistry

    Just..... don't get it A column packing for chromatography consists of a mixture of two types of particles. Assume that the particles in the batch being sampled are spherical with a radius of 0.5 mm. 36% of the particles appeared to be pink and are known

    asked by Sai
  116. algebra

    A student opens a math book to two facing pages.The product of the page numbers is 210.Find the page numbers. The first page is _________ The second page is________

    asked by Rose
  117. Reseach Paper

    Hello, I am writing a research paper and I am at the conclusion part of it. My teacher gave us instructions to not reword the introduction. Does anyone know of a website where I can learn how to create a strong conclusion and bring all my main ideas back

    asked by Joan
  118. chemistry

    predict the pH of the solution obtained when a 1.0 M magnesium hydroxide solution is titrated with an equal amount of a 1.0 M solution of sodium chloride.

    asked by Ash
  119. Precalculus help fast

    a farmer has available 1032 feet of fencing and wishes to enclose a rectangular area. If x represents the width of the rectangle for what value of x is the area the largest A) 256.5 feet b) 258 feet c) 256 feet d) 257 feet please show work! i need help

    asked by Arielt
  120. English

    Can you please check the grammar in the following sentences, please? Thank you very much in advance. 1)If I hadn’t missed it, I would have arrived on time at the theatre and I could have seen Murphy’s performance. 2) I don’t feel well and I’d

    asked by Franco
  121. Physics

    In which of the situations listed below is energy being transferred as heat to the system in order for the system to do work? In which situation is work being done on the system in order for energy to be transferred from the system as heat? a. Two sticks

    asked by Edward
  122. business

    Consider the cultural differences inherent in global business as well as the geographic obstacles of home office and remote locations being in different countries

    asked by Wanda
  123. Physics

    A mixture of gasoline vapor and air is placed in an engine cylinder. The piston has an area of 7.4 x 10^-3 m^2 and is displaced inward by 7.2 x 10^-2 m. If 9.5 x 10^5 Pa of pressure is placed on the piston, how much work is done during this process? Is

    asked by Edward
  124. chemistry

    15.0g of each reactant is taken,determine which mass is limiting and calculate the mass of each product: Al(s)+HCl(aq)-->AlCl3(aq)+H2(g)

    asked by beth
  125. US

    In 1938 Mexico nationalized America's oil, according to my textbook. What does this mean? I don't get what exactly they did.

    asked by Katie
  126. Science

    1.Air can be compressed. What does it mean and why can it be compressed? 2.Air can be expanded. What does it mean and why can it expand? 3.Air also contracts.What does that mean and how does that happen? 4.Can all gases contract and expand? Why or why

    asked by Jamie
  127. Biology

    What is the significance of measuring population density?

    asked by Anonymous
  128. Precalculus

    a farmer has available 1032 feet of fencing and wishes to enclose a rectangular area. If x represents the width of the rectangle for what value of x is the area the largest A) 256.5 feet b) 258 feet c) 256 feet d) 257 feet please show work! i need help

    asked by Help now fast due tommorow
  129. Science

    Write the formula, substitute numbers and units(labels)Mike mixed 20g of 60C water with 40g of 25C water. The final temperature was 39C. 1.Calculate the change of temperature for hot water. 2.Calculate the calories transferred from the hot water.

    asked by Jamie
  130. algebrA

    x^2-7x-98=0 whT is the smaller x solution and the larger x solution

    asked by ewrwerwe
  131. physics

    A weight suspended from a spring is seen to bob up and down over a distance of 50 centimeters 2 times each second. What is its frequency? What is its period? What is its amplitude?

    asked by Alan Thomas
  132. college chemistry

    how could I determine experimentally whether all the potassium chlorate had been decomposed?

    asked by Sarah
  133. Pre-Cal(Please help)

    h(x) = 1/x-3 + 1 I know the vertical and horizontal asymptotes but I just need to know the domain. Please help. I am very confused.

    asked by Hannah
  134. math

    What is the prime factorization of 48?

    asked by Alexis
  135. communications

    helath care administration

    asked by Anonymous
  136. medical billing

    What Tool Does The National Committee For Quality Assurance Use To Evaluate Health Care?

    asked by misty
  137. medical billing

    the file clerk discovered a medical record placed incorrectly in the permanent files by checking for _____ in the last set of two-digit numbers in the medical records numbers.

    asked by misty
  138. physics help!!

    a 3.5 kg dog stands on a 21 kg flatboat at distance D = 6.1 m from the shore. It walks 2.3 m along the boat toward shore and then stops. Assuming no friction between the boat and the water, find how far the dog is then from the shore. I thought i have the

    asked by Anonymous
  139. Precalculus

    a farmer has available 1032 feet of fencing and wishes to enclose a rectangular area. If x represents the width of the rectangle for what value of x is the area the largest A) 256.5 feet b) 258 feet c) 256 feet d) 257 feet please show work! i need help

    asked by Help now fast due tommorow!!!!!!!!!!!!!!!!!!!!!!!!
  140. social studies

    What natural forces have helped shape the physical features of North America?

    asked by ahmed
  141. Maths

    Alright, so I'm doing questions on exponent laws for my grade 11 math couse, and I came across one and I've no idea how to answer it. Could someone please explain step by step? According to textbook, answer should be 16: (2^3) / [(2^0)-(2^-1)] That "-1" is

    asked by Felicity
  142. Math

    a ladder 10 ft long rests against a vertical wal. if the bottom of the ladder slides away from the wall at a rate of 0.7 ft/s, how fast is the angle between the ladder and the ground changing when the bottom of the ladder is 6 ft fro the wall?

    asked by Allie
  143. critical thinking

    is this sentence a valid or sound argument if you want to listen to loud music, do it when we are not at home. It bothers us, and we're your parents

    asked by Anonymous
  144. literary

    please can you examples on consonance, allusion,alliteration and juxtaposition?

    asked by mike
  145. College physics

    A 3.5-A current is maintained in a simple circuit with a total resistance of 1500 W. What net charge passes through any point in the circuit during a thirty second interval?

    asked by HELP WITH PHYSICS
  146. math

    Sal keeps quarters, nickels, and dimes in his change jar. He has a total of 52 coins. He has three more quarters than dimes and five fewer nickels than dimes. How many dimes does Sal have? A. 13 B. 18 C. 20 D. 21 E. None of these. Here is the equation I

    asked by guitarman
  147. Critical Thinking

    Is the following passage valid/sound/strong arguments and what is the reasoning? If you want to see the best version of the three muskateers, try the 1948 version. Lana Turner is luscious, Vincent Price is dastardly; Angela Lansbury is exquisitely regal;

    asked by Lo
  148. physics

    A fish takes the bait and pulls on the line with a force of 2.6 N. The fishing reel, which has a friction clutch that exerts a restraining torque of 0.043 N*m, is a cylinder of radius 0.055 m and mass 0.81 kg. A)What is the angular acceleration of the

    asked by Kyle
  149. physics

    When light of wavelength 495 nm passes through a single slit of unknown width, the diffraction pattern displays a fourth-order maximum where the third minimum of light of an unknown wavelength had been observed to fall. What is the unknown wavelength?

    asked by jibjab
  150. Gr. 12 English

    I want to use the words inaudibly and contradict in a sentence, but I can't think of any.

    asked by AL 87
  151. Physics

    The work required to stretch a certain spring from an elongation of 4.11 cm to an elongation of 5.11 cm is 32.0 J. (a) Is the work required to increase the elongation of the spring from 5.11 cm to 6.11 cm greater than, less than, or equal to 32.0 J? (b)

    asked by Carden
  152. Physics

    Catching a wave, a 65 kg surfer starts with a speed of 1.3 m/s, drops through a height of 2.10 m, and ends with a speed of 8.2 m/s. How much nonconservative work was done on the surfer? I have genuinely no idea how to solve this problem.

    asked by Carden
  153. Physics

    At a playground, a 18.7 kg child plays on a slide that drops through a height of 2.07 m. The child starts at rest at the top of the slide. On the way down, the slide does a nonconservative work of -318 J on the child. What is the child's speed at the

    asked by Carden
  154. Physics

    At a playground, a 18.7 kg child plays on a slide that drops through a height of 2.07 m. The child starts at rest at the top of the slide. On the way down, the slide does a nonconservative work of -318 J on the child. What is the child's speed at the

    asked by Carden
  155. chemistry

    Determine the ammoint of lead precipitate in grams that can be produced from 50 grams of ammonium chloride and excess lead II nitrate

    asked by Elizabeth
  156. Math

    This week, the Laketown Cruise Company took its boat on 19 cruises, carrying the boat's full capacity of 46 guests on each cruise. If each guest paid $22 admission, then how much admission was collected by the company this week? A) Estimate B) Exact

    asked by Kelly
  157. English

    1. She is eating a noodle. 2. She is eating noodles. 3. She ate two bowls of noodles. 4. She ate two bowls of noodle. (Which ones are correct?)

    asked by rfvv
  158. Chemistry

    Pt | Fe2+ (6.4010-5 M), Fe3+ (0.0460 M) || Sn4+ (2.7010-4 M),Sn2+ (0.0750 M) | Pt i need to calculate the voltage of the cell. I know to use E=emf- (RT/nF)lnQ .... I think my problem is with setting up Q. I'm confused on what goes on top and what goes on

    asked by Val
  159. 1st grade

    if yo have three words friend, things & might which word has the long i sound and which word can you get by adding a sound to in? a tin,b hid c find

    asked by Barry
  160. MATH

    Solve the equation 5(n+3)=2(2n+6) Simplify 4(x-1)+2(x+4)

    asked by Lori
  161. Math-Geometry

    Why, in a pyramid, is the slant height different from the altitude?

    asked by Sarah
  162. social studies

    in 1975 supreme court justice potter stewart spoke to a group of reporters about freedom of the press he said "if you look at the literal language in the 1st amendment of the constitution it says congress shall pass no law abridging freedom of press. it

    asked by kristen
  163. Chemistry

    a compound has an empirical formula of C3H5O2 and a molar mass of 145,14g. what is the molecular formula of this compound?

    asked by Sammi
  164. social studies

    should the president be more powerful, less powerful, or stay the same? explain why?

    asked by kristen
  165. Physics

    A 0.26 kg rock is thrown vertically upward from the top of a cliff that is 27 m high. When it hits the ground at the base of the cliff the rock has a speed of 24 m/s. (a) Assuming that air resistance can be ignored, find the initial speed of the rock. (b)

    asked by Carden
  166. Science-Chemistry

    when u use different materials, what are they most likely to be made from: elements, compunds, or mixtures? Which of the three is the most rare. I think that they are most likely to be made from compounds and mixtures. For ex. pops-drinks, juice, etc.

    asked by Sara
  167. 7th grade

    convert 1.5L to mL i need answer asap

    asked by bessie
  168. Math

    How do I convert a percent WITH a repeating decimal to a fraction?! I need fast help plz!!

    asked by Austin
  169. Science-Chemistry

    The alchemists were lookin 4 control over their world. what would the philosophers stone enable them to do? how would this give them control? I wrote: The philospher's stone would enable them to gain fortunes, such as, if they found metal, they could

    asked by Sara
  170. Physics

    A 2.1 kg block slides with a speed of 1.1 m/s on a frictionless, horizontal surface until it encounters a spring. (a) If the block compresses the spring 5.7 cm before coming to rest, what is the force constant of the spring? (b) What initial speed should

    asked by Carden
  171. MATH

    Solve the equation 5(n+3)=2(2n+6) Simplify 4(x-1)+2(x+4)

    asked by Lori
  172. physics

    particle 1 of mass m1 = 0.29 kg slides rightward along an x axis on a frictionless floor with a speed of 1.8 m/s. When it reaches x = 0, it undergoes a one-dimensional elastic collision with stationary particle 2 of mass m2 = 0.40 kg. When particle 2 then

    asked by mike
  173. Chemistry

    How many grams of CuSo4 x 5h20 to prepare 100 mL of a .10M solution?

    asked by John
  174. Chemistry

    Pt(s) | H2(g, 2.0 bar) | H+ (pH = 3.0) || Cl -(aq, 0.85 mol·L-1)) | Hg2Cl2(s) | Hg(l) I need to calculate the voltage of the cell. I have a pretty good idea of how to use the Nernst equation for this, but am unsure if I am calculating the concentration of

    asked by Val
  175. math

    50=3m+2 i need help asap it is due tomrrow

    asked by bessie
  176. math

    0.3m to cm convert i need help asap it is due tomrrow

    asked by bessie
  177. Science-Elements

    which of the alchemy symbols is used today with a completely different meaning? what does that symbol mean today? I couldn't find the information for this in my text, I think it's iron, but I'm not sure, your help will be appreciated, thanks

    asked by Sara
  178. math

    what type of angle measures 180 degrees? i need help asap it is due tomrrow

    asked by bessie
  179. English/History

    President Bush had African Americans in his Cabinet. I cannot find info about President Carter's Cabinet. Did he have any African Am. Cabinet members?

    asked by Mary
  180. chem

    why are the MP and BP of deuterium higher than those of protium?

    asked by kim p
  181. math

    at $8.00 per hour, how much money will kenji earn working 4 and 1 half? i need help asap due tomrrow

    asked by bessie
  182. Career

    My major is business management. where can i find some examples of resumes for a business management fits

    asked by Bryan
  183. math

    what is the average of these fractions? 1/12, 1/6, 1/4, 1/3, and 5/12 i need help asap due tomrrow

    asked by bessie
  184. Science-Elements

    what stimulated the rapid discovry of new elements during the 1700s? I really don't know the answer to this question. I don't get it.

    asked by Sara
  185. physics

    Two flat slides of glass are separated at one edge by a thin wire, as shown below. The top surface of the upper slide and the bottom surface of the lower slide have special coatings on them so that they reflect no light. The system is illuminated with

    asked by Jason
  186. Chemistry

    Write a balanced chemical equation for nitrogen gas reacts with oxygen gas to produce nitrogen dioxide gas

    asked by Elizabeth
  187. physics

    A neutron collides elastically with a helium nucleus (at rest initially) whose mass is four times that of the neutron. The helium nucleus is observed to move off at an angle =45. The neutron's initial speed is 3.8×105 .

    asked by Anonymous
  188. College Algebra

    Trying to figure out the problem in this word proble. The cost, in million of dollars to remove 75% of the pollution in a lke model by c+6000/200-2x?

    asked by Tanya
  189. Science-Elements

    which elements have symbols based on their latin names? Why? Gold = Aurum Lead = Plumbum Iron = Ferrum Tin = Stannum Copper = Cuprum Mercury = Hydragyrum Potassium = Kalium Sodium = Natrium Tungsten = Wolfram Silver = Argentum Antimony = Stibium Could

    asked by Sara
  190. statistics

    Two percent of the circuit boards manufactured by a particular company are defective. If circuit boards are randomly selected for testing, the probability that the number of circuit boards inspected before a defective board is found is greater than 10 is

    asked by Hanna
  191. statistics

    Two percent of the circuit boards manufactured by a particular company are defective. If circuit boards are randomly selected for testing, the probability that the number of circuit boards inspected before a defective board is found is greater than 10 is

    asked by Hanna
  192. Science

    how does a cloud that is charged with electrons form? What is the charge (positive or negative) of such cloud?

    asked by Farah
  193. Chemistry

    can someone explain how to find 1.Chemical shift (ppm) 2.Multiplicity (splitting) 3.intergration (# of h's) for C2H6O

    asked by Andy
  194. math

    2ft squared equals how many square inches ? i need help asap it is due tomrrow

    asked by bessie
  195. 5th grade

    How can you tell if the prepositional phrase is an adverb or adjective phrase?

    asked by Deon
  196. math

    a slide moves triangle abc to form a'b'c' what is the proper name of the transformation that formed a'b'c'?

    asked by bessie
  197. chemistry

    balance this chemical equation: aqueous solutions of alumininum chloride and sodium carbonate are combined, producing alumininum carbonate

    asked by Elizabeth
  198. math

    luke put 2 red pens, 7 blue pens, and 1 black pen in a bag, closed it and shook it up. if the pens are the same size, weight and texture, what is the probally of choosing a red pen? a red or black pen? what is the probability of not choosing a blue pen? if

    asked by bessie
  199. math

    5w+1.5=4.5 i need help asap it is due tomrrow

    asked by bessie
  200. math

    convert 30degress c to degrees fahrenheit please help asap it is due tomrrow

    asked by bessie
  201. math

    name the transformation that turns a figure around a point please help asap it is due tomrrow

    asked by bessie
  202. business

    Consider the wide spectrum of business organizations, ranging from gigantic corporations to working at home. Describe at least three types of business organizations that you are familiar with or that you would like to know more about. How is each one

    asked by Anonymous
  203. integrated algebra

    8(4a-1)=24

    asked by brenda
  204. Chemistry

    A mixture of .10 mol of NO, .050 mol of H2 and .10 mol of H20 is placed in a 1 liter vessel at 300 K. The following equilibrium is established. 2 NO + 2 H2 N2 + 2 H20 At equilibrium (N0) = .062 M. What are the equilibrium concentrations of H2 N2 and H20

    asked by Thomas
  205. Science-Elements

    what 2 things does the formula of a compound tell us? I'm not sure if I'm right, but this is what I wrote: The formula for the compound tells you that it is two parts hydrogen and one part oxygen. The compound carbon dioxide is one part carbon and two

    asked by Sara
  206. Math : Algebra

    I have a whole page of questions I'm trying to complete that are similar to this, but no idea how to do them. If someone could give me a walk through of this question I'd be very appreciative. I'm just suppose to solve the equation. 3n-7/(n-2)(n-3) +

    asked by Clark
  207. math

    darla designed a stained glass window that incorporates 20 squares, triangles, and circles altoghether. the window has 2 more triangles than twice the number of squares. the number of circles in the window is a multiple of three. how many of each shape

    asked by bessie
  208. Chemistry

    Pt(s) | H2(g, 2.0 bar) | H+ (pH = 3.0) || Cl -(aq, 0.85 mol·L-1)) | Hg2Cl2(s) | Hg(l) I need to calculate the voltage for the cell. I have used 1E-3 M for my concentration of H+ given the pH=3 . I don't know how to incorporate the 2.0 bar into the nernst

    asked by Val
  209. chemistry

    please check my answer(one with star). The solubility of borax is directly proportional to temperature. Therefore, the sign of H is A. negative* B. positive C. unknown with the given information since solubility shifts the reaction to the right, therefore

    asked by eng
  210. math

    convert 25 degrees c to degrees fahrenheit. please help it is due tomrrow

    asked by bessie
  211. chemistry

    Explain whether C2H3Cl is polar or non-polar and why? Explain how electronegativity is applied to the answer.

    asked by John
  212. Chemistry

    A mixture of .10 mol of NO, .050 mol of H2 and .10 mol of H20 is placed in a 1 liter vessel at 300 K. The following equilibrium is established. 2 NO + 2 H2 N2 + 2 H20 At equilibrium (N0) = .062 M. What are the equilibrium concentrations of H2 N2 and H20

    asked by Thomas
  213. math

    _ _ _ * _ = 1101 please help it is due tomrrow

    asked by bessie
  214. apchemistry

    I tried to figure this out with my standard reduction potentials sheet, and tried to find a sulfate ion for the first part, but I don't think that is the answer...any help is much appreciated

    asked by Kiki
  215. calculus

    (6+2y)/(3*sqrt(9-y^2)) = Ae^(kt) How do you show the steps to figure what y equals?

    asked by David
  216. chemistry

    What is the volume in liters of 15.0kg of CO2 at STP

    asked by Louisa Lou
  217. Math(Help!!)

    What is the domain? Use a graphing utility to determine the intervals in which the function is increasing and decreasing and approximate any relative maximum or minimun values of the function. g(x) = 12 Ln x / x My answer was: Domain = (12,0) decreasing =

    asked by Mark
  218. Physical Chemistry

    A total charge of 97.4 kC passes through an electrolytic cell. Determine the quantity of substance produced in each of the following cases. (a) the mass (in grams) of silver metal from a silver nitrate solution ?g (b) the volume (in liters at 273 K and

    asked by Mark
  219. chemistry

    One gram of TNT, C7H5N3O6, has 1.33 ´ 1022 hydrogen atoms. How many carbon atoms are there in 1.00 g of TNT?

    asked by David
  220. education

    1.For motor development,the greatest importance for the developing infant is. A.tummy time b.sitting c.crawling d.walking my answer is crawling 2. At what stage does the ability to use imagination begin to develop? A.infancy b.toddlerhood c.preschool

    asked by vanessa
  221. Pre-Cal(Urgent)

    Find f X g , g X f , and f X f f(x) = 3sqrt x-1 g(x) = x^3 + 1 For f(x) the 3 is little above the sqrt sign. My answers were: f(g(x)) = 3sqrt x^3 + 1 -1 g(f(x)) = 3sqrt (x-1)^3 -1 f(f) = 3sqrt x-1-1 My teacher said these were wrong. Please help. I do not

    asked by Hannah
  222. English

    1. I see a woman who is lying on the sofa watching TV. She has put her hand on her cheek. 2. I see a girl who is sleeping on a sofa with the blanket covered. 3. I see a girl who is sleeping on a sofa, covered with a blanket. 4. I see a girl who is lying on

    asked by rfvv
  223. Trig Math

    I need help with this problem. I don't get how to do it or how they got that answer. A force of 50 pounds acts on an object at an angle of 45 degrees. A second force of 75 pounds acts on the object at an angle of -30 degrees. What was the direction and the

    asked by Jane
  224. english

    I need help thinking of an essay topic to do with responsibility? We have a list of sources to work with, as examples: Frankenstein, Dr. Jekyl and Mr. Hyde, Hamlet, V For Vendetta, The Tell Tale Heart and several others.

    asked by Allissa
  225. Medical Billing

    Based on this scenario, complete blocks 21 and 24 of CMS 1500 5/1/10 New F pt comes in complaining of lt great toe pain. Incised, drained, and cleaned area around nail on lt great toe. Dx. Onychia and paronychia. Started on antibiotic and adv to retn in 2

    asked by Sharon
  226. English

    1. She is lying on her right side on a sofa, watching TV. 2. She is lying on her right side on a sofa, and watching TV. 3. She is lying on her right side on a sofa while she is watching TV. (Are they all grammatical and the same in meaning?)

    asked by rfvv
  227. english

    At the beginning of the school year, Erin is deeply distured by a racial caricature of one of her students that she finds being passed around the room. Why does Erin compare this drawing of an African American student to the drawings of Jewish durind the

    asked by A smith
  228. highschool anatomy

    During what period of life does immunocompetence develop?

    asked by Kelsey
  229. English

    She is eating a noodle. (Does this mean she is eating a piece of noodle? When she is eating "noodle' for breakfast, what expression do we have to use? 1. She is eating noodles. 2. She is eating a noodle.)

    asked by rfvv
  230. chemistry

    The atomic mass of Eu is 151.96. There are only two naturally occurring isotopes of europium, 151Eu with a mass of 151.0 and 153Eu with a mass of 153.0. The natural abundance of the 131Eu isotope must be approximately

    asked by Kumar
  231. Biology

    I need help making parenthetical citations within my research paper, crediting sources of information/and or quotation of sources in proper MLA format..can I get some links to help me? Thanks -MC

    asked by mysterychicken
  232. Math

    Find the exact value of the trigonometric function given that sin u = 5/13 and cos = -3/5 1) sin(u-v) My teacher said to make two right triangles and then find the missing parts by the pyth theorem. For the 5/13 triangle I got 12 and the other triangle I

    asked by Hannah
  233. chemistry

    Describe three ways you might be able to speed the reaction of CH4+Cl2 -> CH2Cl2+HCl

    asked by John
  234. Science

    What is the charge of the ground below a negativly charged rain cloud? Why does this occur?

    asked by F.
  235. Chemistry

    A 1.50 M solution containing 25 Grams of Al(OH)3 would occupy what volume in liters?

    asked by Jacob
  236. Physical Chemistry

    Three electrolytic cells containing solutions of CuNO3, Sn(NO3)2, and Fe(NO3)3, respectively, are connected in series. A current of 2.2 A is passed through the cells until 3.10 g of copper has been deposited in the cell. (a) What masses of tin and iron are

    asked by Mark
  237. Physics

    A 0.47 kg pendulum bob is attached to a string 1.2 m long. What is the change in the gravitational potential energy of the system as the bob swings from point A to point B where θ = 31°? I've tried using PE = mgh but I don't know where the 31 degrees

    asked by Carden
  238. 9geography

    Lowland Regions of Canada How was the bedrock of the lowlands formed? How thick is the bedrock in the interior plains and why is it so thick? Why are the ancient coral reefs of the interior plains important today? Describe the topography of the interior

    asked by rebecca
  239. World History

    What happened when the revolutionary dike broke in the early 1830's?

    asked by Nicole
  240. math

    A ferris wheel has radius of 25 m and its centre is 27 m above the ground. It rotates once every 40 seconds. Sandy gets on the ferris wheel at its lowest point and the wheel starts to rotate. Determine a sinusodial equation that gives her height, h, above

    asked by CL
  241. Chemistry

    If there were two solutions- one with areagent(100% pure) mixed in water and the other solution containing the same reagent (99.9% pure) mixed in equal volume of water. How significant would the difference in concentration be between these two solutions?

    asked by Andrew
  242. 9geo

    Parts of the southern portion of the interior plains are often called Canada's 'breadbasket'. Why? What separates the Great Lakes Lowlands from the St.Lawrance Lowlands? Where does this occur and what is the appearance of this area? Describe the

    asked by rebecca
  243. World History

    What were the political and social ramifications of the changing economy in 1830-1832

    asked by Nicole
  244. chemistry

    Draw an energy profile describing an exothermic reaction and label the energy activation and change of heat components of the profle. Calculate the change in heat when 6.00g of 2Cl2 are used in the reaction. Change of heat= -118.3 kcal/mol.

    asked by amanda
  245. 10th grade

    which of the following belong in which tropic level; catfish, algae, small aquatic plants, phytoplankton, dandelions, walleye, snails, zebra musse, moose, zooplankton, grasshopper, squirrels, loon, cryfish, goby (fish), ducks, wolf, herring, field mouse,

    asked by jessica
  246. Chemistry

    Determine the unknown quantity in the following cell at 298.15 K. Pt(s) | H2(g, 1.0 bar)| H+(pH = ?) || Cl -(aq, 1.0 mol·L-1) |AgCl(s), Ag(s), ΔE = +0.36 V. (DrBob) I still wasn't able to figure out the other one--I posted again after that one, but I

    asked by Val
  247. Math

    What is the domain? Use a graphing utility to determine the intervals in which the function is increasing and decreasing and approximate any relative maximum or minimun values of the function. g(x) = 12 Ln x / x My answer was: Domain = (12,0) decreasing =

    asked by Mark
  248. Chem

    In making the ester methyl salicylate, mathanol is reacted with salicylic acid. If 2 grams of salicylic acid is reacted with excess methanol, what mass of ester would you expect to achieve theoretically.. show work

    asked by Anonymous
  249. Chemistry

    Is the compound C2H3Cl polar or nonpolar and why?

    asked by Kathleen
  250. math

    Make f the subject of the formula D = squareroot p/f-p

    asked by Luke
  251. chemistry

    If 7.24 kJ of heat is applied to a 952 g block of metal, the temperature increases by 10.7 degrees Celsius. Calculate the specific heat capacity of the metal in J/g degrees Celsius.

    asked by Jack
  252. math

    g is a linear function such that g(1)=7.5 and g(7)=12.6 Find the formula for g(x). I've tried doing it and the formula i got was: y = 0.9x + 6.6 is that correct?

    asked by Luke
  253. chemistry

    how do you find the mass solute(g), GFM(g/mole), moles of solute, volume of solution, and molarity of solution (M), of CaSO(4)? *how would i solve this set by set? * what are the formulas?

    asked by kelly
  254. crt205

    Indentifying fallacies

    asked by Tonya
  255. math

    Guy wires 80 feet long support a 65-foot tall telephone pole. To the nearest degree, what angle will the wires make with the ground?

    asked by Roslyn
  256. Physics

    Coulomb measured the deflection of sphere A when spheres A and B had equal charges and were a distance d apart. He then made the charge on B one-third the charge on A. How far apart would the two spheres then have had to be for A to have had the same

    asked by Sasha
  257. Chemistry

    If the temperature of a confined gas is doubled at constant pressure, what change is observed? A) The volume of the gas is decreased to 1/4 of its original value. B) The volume of the gas is increased to twice its original value. C) The density of the gas

    asked by Allison
  258. Math

    Find the exact value of the trigonometric function given that sin u = 5/13 and cos = -3/5 1) sin(u-v) My teacher said to make two right triangles and then find the missing parts by the pyth theorem. For the 5/13 triangle I got 12 and the other triangle I

    asked by Hannah
  259. Chemistry

    How much time is required to electroplate 6.530 µg of chromium from a potassium dichromate solution, by using a current of 118 mA? I thought the ratio of e- to moles chromium would be 6/2 but I guess that is wrong? I am using t= nF/A I already made the

    asked by Val
  260. English history

    Hi! My assignment is to write a paper on how love and hate relate to Jean Anouilh's Becket. I'm confused about what I should include though. Should I be going over their entire friendship or analyzing only their emotions?

    asked by Kat
  261. algebra

    what's the answer to a math problem which is......... about areas of a circle

    asked by ashley
  262. History (this is my daughters)

    Will you please check this, my daughter didn't bring home her history book and I have know idea about this. Thank you in advance. In 1846, ELIAS HOWE patented a sewing machine. In 1847, CYRUS McCORMICK opened a factory in chicago that made mechanical

    asked by Crystal
  263. Physics

    Two charged bodies exert a force of 0.415 N on each other. If they are moved so that they are one-third as far apart, what force is exerted?

    asked by Sasha
  264. math 3Probability

    Could you please explain how to do this question. Suppose that a certain candidate is running in a city election. A recent poll of 500 randomly chosen voters concludes that 60% of the voters prefer this candidate. Determine the probability that the

    asked by Sandy
  265. physics

    A rocket is fired straight up through the atmosphere from the South Pole, burning out at an altitude of 208 km when traveling at 5.8 km/s. (a) What maximum distance from Earth's surface does it travel before falling back to Earth? I know how to do the

    asked by nate
  266. Pre-Cal

    Find f X g , g X f , and f X f f(x) = 3sqrt x-1 g(x) = x^3 + 1 For f(x) the 3 is little above the sqrt sign. My answers were: f(g(x)) = 3sqrt x^3 + 1 -1 g(f(x)) = 3sqrt (x-1)^3 -1 f(f) = 3sqrt x-1-1 My teacher said these were wrong. Please help. I do not

    asked by Hannah
  267. Chemistry

    Describe three ways you might be able to speed the reaction of CH4+Cl2 -> CH2Cl2+HCl (answer given by unknown member didn't seem correct)

    asked by John
  268. trig

    ||v|| = 8 u = find the vector

    asked by victor
  269. chemistry

    What quantity of heat is required to warm 53.7 g of liquid water from 0°C to 100°C?

    asked by rachel
  270. calculus

    for x is an element of [-11,11]the function defined by f(x)=x^7(x+3)^6. where does the function achieve its minimum?

    asked by ash
  271. NEED HELP! CHEMISTRY

    Three electrolytic cells containing solutions of CuNO3, Sn(NO3)2, and Fe(NO3)3, respectively, are connected in series. A current of 2.2 A is passed through the cells until 3.10 g of copper has been deposited in the cell. (a) What masses of tin and iron are

    asked by Mark
  272. Chemistry

    CH4+Cl2 -> CH2Cl2+HCl if 6.00 g of CH4 are mixed with 6.00 g of Cl2, how much HCl can be made? What is the percent yield if 2.5 g are recovered from the reaction?

    asked by John
  273. physics

    An ultrasonic beam reflects off a tumor in an organ at an angle of 50 with a shift L = 7 cm. If the speed of the wave is 26 % less in the organ than in the medium above, determine the depth of the tumor below the organ's surface

    asked by jude
  274. Chemistry

    We're doing gas problems in chemsitry. I have no idea where to even begin on this problem: Air is 20% oxygen and 80% nitrogen. What is the mass of air in an automobile tire of 19.7 L and internal pressure of 46.7 PSI at 24 degrees celsius? (That pressure

    asked by Avalon
  275. Math

    Determine two coterminal angles (one positive and one negative) for the given angle. Give your answer in radians. A) 8pi/9 B) 8pi/45 For 8pi/9 I added 18pi/9 which equals 26pi/9 - 18pi/9 = -10pi/9. I do not know how to find the positive one for 8pi/9 and I

    asked by Abbey
  276. 9th grade

    what qualities do people in todays society consider barbaric or monstrous? give a real life example

    asked by adam